Greens can be found in kitchen refuse and fresh garden weeds. Browns can be found in dried leaves and paper.
But did you know that there are a whole host of weird things that can be composted and will also fill your green and brown quota?
Here are a just a few of the oddities:
100% cotton ballsUsed MatchesUsed TissuesPaper TowelsWine CorksPeanut shellsUsed Tea bagsUsed Coffee GroundsContents of vacuum bagsPizza boxes (clean)Aquarium water
For a much more detailed list, please see:
To see more: http://thegardeningcook.com/weird-things-to-compost/